Environment Canada has a special weather statement in effect for Sarnia-Lambton.
The national weather agency said heavy winds, gusting between 70 km/h and 80 km/h, are expected to develop over the region on Wednesday.
A cold front will sweep through southern Ontario during the afternoon and evening hours, bringing strong southwest winds.
The threats include power outages, broken tree branches, and difficult driving conditions.
Meanwhile, the St. Clair Region Conservation Authority is advising of increased wave action, storm surge, possible shoreline erosion, and elevated water levels.
Residents along the Lake St. Clair shoreline in the Mitchell’s Bay and Walpole Island First Nation areas may experience elevated water levels due to storm surge, increased wave action and possible shoreline erosion.
Water levels in the Sydenham River at Wallaceburg may also become elevated due to backflow from strong winds.
We're being reminded to avoid the shoreline and flooded areas due to dangerous conditions, slippery banks and cold, swift moving water.
Children and pets should be kept away from the water.